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US3574182A
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Calcium salt of 6-bromo-1-(1'-sulfo-2'-naphthylazo)-2-naphthol
Assignee: Xerox Corp
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Filing: 1967-02-01
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Granted: 1971-04-06
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Expires: 1987-02-01
Abstract
Abstract COMPOUNDS CONSISTING OF A GROUP OF METAL SALTS OF 1(1''-SULFO-2-NAPTHYLAZO)-2-NAPHTHOLS. THE COMPOUNDS ARE USEFUL AS ELECTRICALLY PHOTOSENSITIVE MAGENTA PIGMENT PARTICLES IN PHOTOELECTROPHORETIC IMAGING SUCH AS SHOWN IN U.S.PAT. 3,384,565, ISSUED MAY 21,1968, TO V. TULAGIN AND L. CARREIRA.
Inventors
- 👤 Freeman B Jones Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:46
CPC Classifications
C; C09; C09B; C09B63/00; C09B63/005; C09B45/00; C09B45/02; C09B45/14; C09B45/16; G; G03; G03G; G03G17/00; G03G17/04; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0675; G03G5/0677
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |